Home / 97,977.87-135,199.13-57,689.01

Finding the Fourth Proportional to 97,977.87, 135,199.13 and 57,689.01

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Solution

The fourth proportional to 97,977.87, 135,199.13 and 57,689.01 is: 79,604.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,977.87 : 135,199.13 = 57,689.01 : x
  2. Step 2: Convert to fraction form
    97,977.87/135,199.13 = 57,689.01/x
  3. Step 3: Cross multiply
    97,977.87x = 135,199.13 × 57,689.01
  4. Step 4: Simplify right side
    97,977.87x = 7,799,503,674.12
  5. Step 5: Solve for x
    x = 7,799,503,674.12/97,977.87
  6. Step 6: Final answer
    x = 79,604.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.